Limited Life Expectancy, Human Capital and Health Investments: Evidence from Huntington Disease
AbstractOne of the most basic predictions of human capital theory is that life expectancy should impact human capital investment. Limited exogenous variation in life expectancy makes this difficult to test, especially in the contexts most relevant to the macroeconomic applications. We estimate the relationship between life expectancy and human capital investments using genetic variation in life expectancy driven by Huntington disease (HD), an inherited degenerative neurological disorder with large impacts on mortality. We compare investment levels for individuals who have ex ante identical risks of HD but learn (through early symptom development or genetic testing) that they do or do not carry the genetic mutation which causes the disease. We find strong qualitative support: individuals with more limited life expectancy complete less education and less job training. We estimate the elasticity of demand for college completion with respect to years of life expectancy of 0.40. This figure implies that differences in life expectancy explain about 10% of cross-country differences in college enrollment. Finally, we use smoking and cancer screening data to test the corollary that health capital is responsive to life expectancy.
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Bibliographic InfoPaper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 17931.
Date of creation: Mar 2012
Date of revision:
Publication status: published as “Limited Life Expectancy, Human Capital and Health Investments” (with E. Ray Dorsey and Ira Shoulson). American Economic Review, 103 (5): p. 1977-2002 (August 2013).
Note: AG LS
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Find related papers by JEL classification:
- I15 - Health, Education, and Welfare - - Health - - - Health and Economic Development
- I25 - Health, Education, and Welfare - - Education - - - Education and Economic Development
- J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
This paper has been announced in the following NEP Reports:
- NEP-ALL-2012-04-03 (All new papers)
- NEP-HEA-2012-04-03 (Health Economics)
- NEP-HRM-2012-04-03 (Human Capital & Human Resource Management)
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- William H. Dow & Tomas Philipson & Xavier Sala-i-Martin & Jessica Holmes, 1997. "Health investment complementarities under competing risks," Economics Working Papers 192, Department of Economics and Business, Universitat Pompeu Fabra.
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